EVALUATION OF THE IMMUNE RESPONSES INDUCED BY EXPERIMENTAL INFECTION OF (BALB/c) MICE WITH SALMONELLA HADAR

2010 ◽  
Vol 9 (2) ◽  
pp. 119-126
Author(s):  
Afaf Abdul Rahman Yousif ◽  
Maan M. Neima AL-Naqeeb
Keyword(s):  
Immune Responses ◽  
Experimental Infection ◽  
Salmonella Hadar

scholarly journals Immune Responses and Protection against Experimental Brucella suis Biovar 1 Challenge in Nonvaccinated or B. abortus Strain RB51-Vaccinated Cattle

2010 ◽  
Vol 17 (12) ◽  
pp. 1891-1895 ◽  
Author(s):  
S. C. Olsen ◽  
S. G. Hennager
Keyword(s):  
Immune Responses ◽  
Experimental Infection ◽  
Brucella Abortus ◽  
Agglutination Test ◽  
Saline Control ◽  
Infected Cattle ◽  
Infection Rates ◽  
Treatment Groups ◽  
Brucella Suis ◽  
Fluorescence Polarization Assay

ABSTRACT Twenty Hereford heifers approximately 9 months of age were vaccinated with saline (control) or 2 × 1010 CFU of the Brucella abortus strain RB51 (RB51) vaccine. Immunologic responses after inoculation demonstrated significantly greater (P < 0.05) antibody and proliferative responses to RB51 antigens in cattle vaccinated with RB51 than in the controls. Pregnant cattle received a conjunctival challenge at approximately 6 months of gestation with 107 CFU of B. suis bv. 1 strains isolated from naturally infected cattle. The fluorescence polarization assay and the buffered acid plate agglutination test had the highest sensitivities in detecting B. suis-infected cattle between 2 and 12 weeks after experimental infection. Serologic responses and lymphocyte proliferative responses to B. suis antigens did not differ between control and RB51 vaccinees after experimental infection. No abortions occurred in cattle in either treatment group after challenge, although there appeared to be an increased incidence of retained placenta after parturition in both the control and the RB51 vaccination treatment groups. Our data suggest that the mammary gland is a preferred site for B. suis localization in cattle. Vaccination with RB51 did not reduce B. suis infection rates in maternal or fetal tissues. In conclusion, although B. suis is unlikely to cause abortions and fetal losses in cattle, our data suggest that RB51 vaccination will not protect cattle against B. suis infection after exposure.

scholarly journals Systemic and local immune responses in sheep after Neospora caninum experimental infection at early, mid and late gestation

2016 ◽  
Vol 47 (1) ◽  
Author(s):  
David Arranz-Solís ◽  
Julio Benavides ◽  
Javier Regidor-Cerrillo ◽  
Pilar Horcajo ◽  
Pablo Castaño ◽  
...  
Keyword(s):  
Immune Responses ◽  
Experimental Infection ◽  
Neospora Caninum ◽  
Late Gestation

Humoral and cellular immune responses to Fasciola gigantica experimental infection in buffaloes

2006 ◽  
Vol 80 (3) ◽  
pp. 299-307 ◽  
Author(s):  
W.Y. Zhang ◽  
E. Moreau ◽  
B.Z. Yang ◽  
Z.Q. Li ◽  
J.C. Hope ◽  
...  
Keyword(s):  
Immune Responses ◽  
Experimental Infection ◽  
Fasciola Gigantica ◽  
Cellular Immune Responses ◽  
Cellular Immune

Immune responses in pregnant cattle and bovine fetuses following experimental infection with Neospora caninum

2001 ◽  
Vol 87 (10) ◽  
pp. 817-825 ◽  
Author(s):  
Andrianarivo A. ◽  
Barr B. ◽  
Anderson M. ◽  
Rowe J. ◽  
Packham A. ◽  
...  
Keyword(s):  
Immune Responses ◽  
Experimental Infection ◽  
Neospora Caninum ◽  
Bovine Fetuses

scholarly journals Comparative analysis of immune responses following experimental infection of pigs with European porcine reproductive and respiratory syndrome virus strains of differing virulence

2013 ◽  
Vol 163 (1-2) ◽  
pp. 1-12 ◽  
Author(s):  
Eefke Weesendorp ◽  
Sophie Morgan ◽  
Norbert Stockhofe-Zurwieden ◽  
Ditta J. Popma-De Graaf ◽  
Simon P. Graham ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Immune Responses ◽  
Experimental Infection ◽  
Respiratory Syndrome Virus ◽  
Virus Strains

Immune responses directed at egg proteins during experimental infection with the liver flukeFasciola hepatica

2010 ◽  
Vol 32 (2) ◽  
pp. 111-124 ◽  
Author(s):  
J. V. MOXON ◽  
R. J. FLYNN ◽  
O. GOLDEN ◽  
J. V. HAMILTON ◽  
G. MULCAHY ◽  
...  
Keyword(s):  
Immune Responses ◽  
Experimental Infection
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